Sawing-machine.



Patented'Nov. 28, I899.

No. 3mm.

J. GILLiES.

SAWING MACHINE.

(Application filed May 2, 1899.)

2 Sheets-$heet (No Model.)

INVENTOR' 9,4 6M

EQ MMM J.

WITNESSES: a ,m' M02;

ATTORNEYS V545 warns PETERS co, vnurmuma. wasmumon, n. c.

Patented Nov, 28, I899. J. GILLIES.

SAWING MACHINE.

(No Muriel.) (Application filed May 2, 1899.)

'2 Sheets-Sheet 2.

WITNESSES: INVENTOR ffll BY {,WLWvJ ATTORNEYS PATENT JOHNGILLIES, OFNEWV YORK, N. Y.

SAWlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 637,961, dated November 28, 1899. Application filed May 2, 1899. Serial No. 715,316; (No model.)

To all whom, it may concern:

Be it known that I, JOHN GILLI ES, a citizen of the United States, residing at New York, (Flushing,) in the county of Queens and State of New York, have invented certain new and useful Improvements in Sawing-Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, suchas will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to sawing-machines, and particularly to machines intended for sawing stone; and my invention consists in the novel combination, construction, and arrangement of the parts.

The purpose for which my sawing-machine is particularly intended is the cutting up of long blocks of stone into blocks of shorter length.

The object of my invention is to make the machine simple, effective, easily adjusted and operated, and comparatively inexpensive. This object is attained in the sawingmachine herein described, and illustrated in the drawings which accompany and form a part of this specification, in which the same reference-numerals indicate the same or corresponding parts, and in which Figure 1 is a side elevation of the machine. Fig. 2 is a transverse section thereof through the center of the saw-carriage, the section being taken at right angles to Fig. 1. Fig. 3 is a plan view of the machine. Fig. 4 is a detail transverse section of one of the columns which support the saw-carriage guide-frame, showing the means employed for guiding and adjusting vertically said frame; and Fig. 5 is a detail section of the same, showing the form of the teeth.

In the drawings, 1 1 are columns of chan- Del-section; 2 2, diagonal braces therefor; 3 3, top pieces connecting the end braces of the columns, and 4: a rectangular frame guided by the column 1 and arranged to be adjusted vertically, by means to be hereinafter described, and provided with guides upon its upper and lower sides for guiding the movement of the saw-carriage 5, which surrounds and is mounted upon the frame 4: and bears against the upper and lower guides thereof. Said saw-carriage is provided withbearings for a saw-shaft 6, having secured thereto a saw 7. Said saw is underhung, so as to be particularly adapted for working on objects beneath the carriage.

S S are I-beams forming the base of the machine.

9 9 are suitable guides for a work-carriage 10. The guides shown are ordinary railwayrails, and the carriage 10 is a truck similar in construction to the trucks ordinarily used for handling stone in a stone-yard. The rails 9 9 are laid transversely from the saw-carriage guide-frame 4, the framework of the machine being so constructed that the workcarriage 10,with a block of stone thereon, may pass underneath the guide-frame l. The truck 10 may therefore be moved on the rails 9 until the point at which a cut is to be made is exactly opposite the saw' 7. The'cut may then be commenced.

11 designates a stone upon the truck 10 in which a cut is being made. Suitable braces 12 for holding the stone stationary on the truck may be provided.

The saw-carriage guide-frame c carries a revoluble driving-shaft 13. The saw-carriage 5 carries a worm 14:, mounted upon said shaft 13 and driven therefrom by means of a key or spline working within a groove 15 in the shaft 13. worm-wheel 16, intermeshing with the said worm. Revolution of the shaft 13 therefore drives the saw. The saw-carriage 5 is traversed upon the guide-frame t by a screw 17, mounted in hearings in the frame t and work in g in a screw-threaded sleeve 18 of the oarriage 5. The screw 17 is driven from the shaft 13 by bevel-gears 19, 20, 21, and 22.

As above stated, the columns 1 are of channel-section. The guide-frame 4: is provided with extensions 23, carrying on their ends guide-shoes working in the channels of the columns, these channels thus forming guides. The frame 4 is also steadied against lateral movement by guide-pieces 24, bolted to the sides of the columns 1. Vertical screw-shafts 25, having bearing in the columns 1 and passing through the extensions 23 of the frame 4, are provided for raising and lowering the frame 4:. One of these screw-shafts 25 is provided with an operating-wheel 26, and the other screw-shafts are connected to The saw-shaft 6 is provided with a that shaft which is provided with the wheel by means of suitable gearing and shafts, as shown.

The driving-shaft 13 is provided with a beltwheel 27, by which it may be rotated. This belt-wheel should be driven from a countershaft at such distance from the machine and so located that the necessary amount of vertical movement of the saw-carriage may take place without materially altering the belttension.

The operation of the machine is as follows: A stone to be out having been placed upon the truck 10 and said truck having been moved on the rails or guides 9 until the point on the stone at which the cut is to be made is exactly opposite the saw '7, (which saw is then upon the left-hand side of the machine) the revolution of the shaft 13 is commenced, thus causing the saw to revolve and causing the saw-carriage to move to the right. The depth of cut is adjusted by means of the handwheel 26. After a cut is made the carriage may be returned to the left-hand side of the machine by reversing the direction of revolution of the shaft 13 by any suitable means. After a out has been completed at one point and the saw withdrawn the stone-carriage may be moved onward and a cut made at another point in the stone.

I prefer to use a saw having teeth shaped as shown in Fig. 5that is, having a V-shaped cutting edge.

My practice is not to cut the stone completely through with the saw, but to outwithin about one-fourth of an inch of the lower surface of the stone. The cut may then be finished by breaking the stone by means of wedges or in any other suitable manner. The

ridges then remaining on the stone may be removed by dressing. In this way injury to the edges of the stone may be avoided.

Having thus completely described my invention, what I claim, and desire to secure by Letters Patent, is-

1. In a sawing-machine, the combination, with guides for a work-carriage, and a frame spanning said guides and adapted to permit the passage of a work-carriage beneath the same, and having ahorizontal guide'member provided with guides for a saw-carriage upon its upper and lower sides, of a saw-carriage surrounding and mounted upon said guide member, an underhung saw revolubly mounted upon said saw-carriage, and in close proximity to the saw-carriage guide member, and means for driving the saw and traversing the saw-carriage.

2. Ina sawing-machine, the combination, with guides for a work-carriage, and a frame spanning said guides and adapted to permit the passage of a work-carriage beneath the same, and having a horizontal guide member for a saw-carriage, of a saw-carriage surrounding and mounted upon said guide member and guided upon both the upper and the lower sides thereof, an underhung saw-shaft carried by said carriage, a saw thereon, a driviug-shafthaving a worm mounted thereon and connected thereto by a feather, and arranged to be moved along said driving-shaft by the saw-carriage, and aWorm-Wheel on the saw-shaft intermeshing with the worm.

In testimony whereof I hereunto affix my signature in the presence of two witnesses.

JOHN GILLIES.

XVitnesses:

II. M.-MARBLE, H. A. CASE. 

